Arbor-press.



R. S. WHITNEY.

ARBOR PRESS.

APPLICATION FILED MAY 4, 1914.

Patented Feb. 16, 1915.

Mlnsses:

THE NORRIS PETERS c0.. PHD

Invenlor:

TC-L!THO.. WASHINGTON D. c.

BOLVIN S. WHITNEY, 0F LEWISTON, MAINE.

ARBOR-PRESS.

Specification of Letters Patent.

Patented Feb. 16, 1915.

Application filed May 4, 1914. Serial No. 836,155.

To all whom it may concern Be it known that I, RoLvIN S. WHITNEY, of Lewiston, in the county of Androscoggin and State of Maine, have invented certain new and useful Improvements in Arbor- Presses, of which the following is a specification.

My invention relates to arbor presses such as are designed particularly to remove shafts from pulleys and the like. These arbor presses usually consist of a bed piece having an opening through which the shaft or arbor passes and a plunger mounted in a heavy overhanging standard and forced downward by a rack and pinion. The presence of the standard limits the application of the ordinary arbor press to pulleys and other work occupying a limited amount of space horizontally. Consequently the usefulness of the press is limited since it often happens in machine shops and other places where such presses are installed that it is desirable to force out arbors from wheels, pulleys, etc., of comparatively large size and which the ordinary arbor press would not take.

The object of my invention is to devise a press in which work of a relatively large size may be handled and which will permit of the application of a high pressure.

It is particularly designed to meet the general requirements of automobile garages where it is often desired to remove boxes from wheels, shafts from gears, straighten shafts, etc., by the application of a high pressure.

The invention consists essentially of a bed piece having ways on which slide a pair of work-supporting brackets adapted to be adjusted to support the work at two points, with a yoke and pressure screw, the former connected to the base by removable bolts so that the yoke may be removed when large work is to be placed in the press. The end of the screw is also provided with a pivoted end piece which is kept from turning by means of a guide rod which moves With the screw and is held in a guide opening in the yoke.

My invention may best be understood by reference to the accompanying drawing in which is shown an arbor press constructed in accordance with my invention.

In the drawing, Figure 1 is a side elevation of the press showing a gear and its arbor in place to be operated upon, Fig. 2 is an end view, and Fig. 3 is a horizontal section on the line 00 00 of Fig. 1.

Referring to the drawing, a represents the bed piece which is preferably a heavy casting having cast integral therewith the ways a an opening a being left in the bed piece to allow the arbor or shaft to pass down through the bed.

The work is mounted on a pair of supporting brackets I; which are adapted to slide on the ways a. The brackets have each a base 6 which rests on the ways and a vertical flange 6 provided with a notch b in which shafts or other cylindrical members may be placed.

Force is applied to the arbor by means of a screw 03 engaging a screw threaded opening in the yoke c, the screw being provided with an operating handle 03. The yoke is connected with the bed by rods 0. These rods are secured to the yoke by nuts 6 or in any suitable manner so that the yoke may be readily removed to permit the introduction of wheels, pulleys and other articles of relatively large size.

To prevent the turning of the work when the screw pressure is applied I pivot on the lower end of the screw a bearing cap (2 which is prevented from turning with the screw by a guide rod f which extends upwardly parallel with the screw and through an opening in the yoke. The lower end of the guide rod is turned at right angles and made to enter the side of the cap (P. The rod f moves freely up and down with the screw but prevents the cap from rotating.

In using my arbor press the brackets b are separated so that the work lies solidly in place. If an arbor is to be forced out of a pulley or a gear the latter is laid on the brackets and the arbor forced out in the usual manner. In Fig. 1 I have shown an arbor g in position to be forced out of the gear 71,. If a wheel or pulley of large size is to be operated upon, the yoke is removed by taking off the nut e and the wheel or pulley is put in place, the rods being passed between the spokes.

In straightening shafts the shaft is laid in the notches b and the position of the brackets may be suitably regulated so that force may be applied to the shaft to be straightened at any desired point.

A great variety of work may be done by my arbor press and as will be seen, it is well adapted to be used in garages and machine shops and other places where the application of considerable force is necessary for separating parts, bending, straightening, etc.

I claim 1. In an arbor press, the combination of a bed piece having a pair of parallel ways, a pair of worl supporting brackets adapted to slide on said ways, a yoke having a screw threaded opening above said ways, rods detachably -connecting said base to said yoke and a screw en'gagingsaid screw threaded opening.

'2. In an arbor press, the "combination of a bed piece having. a pair of parallel ways, a pair of work-supporting brackets adapted to Copies of this patent may be obtained for slide on said ways, a yoke having a screw threaded opening above said ways, rods connecting said base to said yoke, a screw engaging said opening, a bearing head pivoted to the end of said screw, a guide rod parallel with said screw and connected with said bearing head, a guide opening through which said guide rod passes being formed in said yoke.

In testimony whereof I have aflixed my signature, in presence of two Witnesses.

five cents each, by addressing the Commissioner of I'atnts. Washington, D. G. 

